Heating apparatus



FIG. 1 is a perspective view of a heating apparatus according to our new design;

FIG. 2 is a top view of the heating apparatus of FIG. 1;

FIG. 3 is a bottom view elevation view of the heating apparatus of FIG. 1;

FIG. 4 is a front elevation view of the heating apparatus of FIG. 1;

FIG. 5 is a right side elevation view of the heating apparatus of FIG. 1, the left side elevation view being a mirror image thereof; and,

FIG. 6 is a rear side elevation view of the heating apparatus of FIG. 1.

In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design. 

The ornamental design for a heating apparatus, as shown and described. 